"duly published" is a correct and usable phrase in written English.
It is typically used to describe something that has been officially and properly announced or made known to the public. Example: The company's financial report was duly published in major newspapers to ensure transparency.
Those plans were all duly published within five months.
So the Ipso decision was unsurprising and the Express, as ordered, has duly published its adjudication.
Two draft sequences were duly published in 2001, though work on polishing them continues.
Most if not all of these changes were accepted, and the book was duly published.
An interview was duly published and Duch handed himself in to the Phnom Penh authorities.
The first three books of The Faerie Queene were duly published in 1590, together with a dedication to her and commendatory sonnets to notables of the court.
But neither shipper nor carrier may vary from the duly filed and published rate without incurring the penalty of the law.
As we interpret this law, it is intended, among other things, to prohibit and punish the receiving of a concession for the transportation of goods from the duly filed and published rate.
On August 6 the Burlington Company and its connecting carriers filed with the Interstate Commerce Commission an amendment to their tariffs, which was duly posted and published, and by which the rate from Kansas City, Kansas, to New York, was increased.
He was Mr. Dooley, and he was a figment of the humorist Finley Peter Dunne's imagination — a saloonkeeper who rarely left Chicago's South Side, where he opined in a barely decipherable Roscommon brogue in column-length commentaries that Dunne duly transcribed and published.
It is not so much the particular form by which or the motive for which this purpose was accomplished, but the intention was to prohibit any and all means that might be resorted to to obtain or receive concessions and rebates from the fixed rates, duly posted and published.
